The Evac+Chair Comfy Seat is a simple to fit device that sits on the frame of the Evac+Chair and features a moulded base and a detachable cushion with integrated leg straps. Its purpose is to accommodate persons of greater girth and those with prosthesis (false legs), leg calipers, leg amputees, those with plaster casts and persons with pre-operative and post-operative conditions pertaining to the hip, femur or both.